Add redis-config.c to project.

redis-config.c deal with configuration in WheatRedis app
Fix worker_async bug when client->pending != NULL and app call connGet(), it will get incorrect conn instead of new conn
Change app->deallocApp return value means
Change string2ll return value means
Fix problem after string2ll return value changes
Cancel multikey supporting for redis app
Add sync read and sync write implement
Add listEach and listEach2 to structure list in order to ease iterate list consuming.
Add arrayLast interface to structure array
Change hash consistence implement in WheatRedis
When \n or \r in log messages, wheatLog now will replace \n to '\\''n''  to ease watch logs
Change readBulkFrom return value type becasue of compile warning
Add config-server and config-source to wheatserver.conf.
Add redis-server configuration supporting and change most of code structures
Upgrade version